Are you ready for EXLR8 v3's new trellis codebook? Meet pmcgx!
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pmcgx? Are you ready for EXLR8 v3's new trellis codebook? Meet pmcgx! pmcgx is what makes EXLR8 v3 faster than EXL3 and even faster than EXLR8 v2, while keeping weight sizes small thanks to EXLR8's optimized per-expert-half width mixes! First of all, what is a codebook? The codebook is the magic that takes the bitstream that makes up your compressed EXL3 or EXLR8 weights and turns them into numbers we multiply in giant tensors at inference time. The original QTIP paper described how you can use a rotation operation and viterbi search over a trellis codebook to compress weights down to just
Posted by Matt Mastracci (11.1k followers) 3 h ago · 7 likes · 523 views · view the original post on X. Kept by the Dev Radar as Other.
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